Endoscopic instrument



(No Model.)

J. W. DAILY.

ENDOSGOPIG INSTRUMENT. No. 559,122. Patented Apr. 28, 1896 H B 9 K P WITNESSES lN\/ENTEIR ATENT OFFICE.

JOHNWV. DAILY, OF BOSTON, MASSACHUSETTS.

ENDOSCOPIC INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 559,122, datedApril 28, 1896.

Application filed August 21, 1895. Serial No. 560,078. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN W. DAILY, of Bos- I electric lamp of any suitable size and shape desired, varying in size and length of tube, as may be required, and in the details of construction hereinafter more fully described, and specifically set forth in the annexed claim. To the posterior extremity of this lamp-carrying tube and integral with it is a thin bif urcated or slotted metal plate of any suitable length desired. The said plate is preferably constructed to project at right angles with the tube, but may be arranged at any angle or in any position best adapted to the convenient attachment of the tube carrying lamp to any of the many and various instruments to which it may be applied and for which it may be more especially designed.

In the drawings hereto attached, which form a part of this specification, and to which reference is made, Figure 1 represents a vertical section of a female speculum, showing a lamp-tube attached to the posterior extremity thereof by means of a slotted plate and thumbscrew, whereby the lamp-tube and inclosed electric lamp may be detached and removed therefrom, as desired. sectional perspective view of the tube inclosing an incandescent electric lamp detached and removed from the speculum, so as to permit the speculum or instrument, after being used, to be cleansed more conveniently, the tube and lamp being drawn on an enlarged scale.

A represents a female speculum or any other instrument adapted for examining cavities of the human body, illuminated by means of an electric light applied as shown or otherwise in the instrument when inclosed within a tube.

Fig. 2 represents a- B represents a metal tube formed of any shape and size desired, the inward end there of being provided with a removable cap provided with a transparent disk 0 of mica or other desired material, so as to permit the light of the incandescent electric lamp E to shine provided with a hard-rubber insulator-plug F, through which pass the electric wires H,

connected with the small incandescent electric lamp E in the usual mannerheretofore employed, wherein the terminals of the wires are connected to the opposite poles or elements of a common galvanic battery. Now in order to permit the said lamp and tube to be temporarily connected and held in position within the speculum or other instrument, and when desired to be quickly detached and removed, I provide the said metal tube B, near the outward end thereof, with a thin sheet-metal plate K, projecting downward at aright angle thereto and having the lower end portion bifurcated or provided with a vertical slot N, adapted to pass over the threaded thumb-screwP, provided in the handle portion L of the said speculum, so as to contact with thepron gs of the said projecting plate K when turned or screwed inwardly, and thereby hold the said lamp-tube firmly in position while being used, as shown in Fig. 1, clamped to the said handle L.

It will be seen and understood that the said lamp-carrying tube may be detached and removed from the instrument when desired by simply turning the said thumb-screw, so as to release the said attaching-plate held in contact with said handle, asshown and described.

Having thus described my invention, what I claim is An endoscopic instrument having a separate, or independent tube inclosin g therein an incandescent electric lamp and detachably connected to the instrument by means of a slotted plate and set-screw, as shown and described, as and for the purposes set forth. JOHN W. DAILY.

Witnesses SYLVENUS .WALKER, HENRY Ho'oenron. 

